Consolidated Balance Sheets (Parenthetical) (USD $)	Aug. 31, 2012	Nov. 30, 2011
Statement of Financial Position [Abstract]
Common Stock, Par Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	500,000,000	500,000,000
Common Stock, Shares, Issued	91,484,882	96,664,600
Common Stock, Shares, Outstanding	91,484,882	96,664,600